Introduction of lawn lamp varieties

Since the development of lawn lights, different varieties have been derived according to different application environments and personalities. They are divided into six categories: European lawn lights, modern lawn lights, classical lawn lights, anti-theft lawn lights, landscape lawn lights, and LED lawn lights. kind. European-style lawn lanterns: The depiction of personality mostly uses some European-style artistic elements from European countries, and presents them in a general form. Modern lawn lanterns: the depiction of personality mostly uses modern artistic elements, and it is reflected in a concise method. Classical lawn lanterns: its depiction mostly uses Chinese classical elements, which are used and modified, such as palace lanterns. These three types of lawn lamps represent different personalities, and are also derived from most manufacturers in order to match the depiction of urban buildings. Anti-theft lawn light: Its description is to eradicate the appearance of theft and sale of lawn lights by some criminal gangs in the society. Anti-theft lawn lights are mostly made of polymer composite materials. Its strength and corrosiveness are slightly higher than steel and aluminum, but its price expensive. Landscape lawn lamp: Landscape lawn lamp is mainly characterized by landscape decoration, supplemented by lighting functions. Rockery, plants, etc. are the primary depiction elements. LED lawn light: At that time, most lawn lights used LED as the light source. The LED has a long life span and can reach 100,000 hours. The use of low voltage is very suitable for solar lawn lights. In particular, LED technology has achieved its key breakthrough, and its characteristics have greatly improved in the past 5 years. At the same time, the price-performance ratio has also improved greatly. The LED is powered by low-voltage DC, and its light source control cost is low, adjusting the brightness and darkness, and frequent switching are all possible, and it will not adversely affect the performance of the LED. Controlling color, changing the distribution of light, and generating dynamic illusions are all possible, so it is especially suitable for solar lawn lights. It has many inherent properties that can cause undesirable effects if not carefully applied. However, the luminous power of LEDs sold in the market at that time could only reach 15lm/w, which could only reach 1/3 of the three-color primary color high-efficiency energy-saving lamps. From the cost point of view, the cost per lm produced at that time: Sanzizhen color base color high-efficiency energy-saving lamps (including current devices) 0.022 yuan, in 2002, the cost of f5mm white light LEDs was 1.9~3.0 yuan, the cost per lm produced at that time was high, and the difference was huge. . From the perspective of application life, the life of three-color primary color high-efficiency energy-saving lamps (including electronic ballasts) can reach 6,000 hours, and the LED can reach 100,000 hours. (including electronic ballasts) dozens of times, but this is not the case in practice. Most solar lawn lights receive ultra-bright white LEDs. The time (lifespan) when the luminous flux retention rate of ultra-bright white LEDs reaches 50% of the initial intensity under 20ma is less than 10,000 hours. View. That is to say, led is not the best solar lawn light source in many environments at that time, unless it is a solar lawn light with a low level and an application life of only 1~2 years, which is about a solar lawn light below 1w. To withstand the solar lawn light above 1w, the best application of three-color primary color high-efficiency energy-saving lamps. At that time, some solar lawn lights used 30~40 ultra-bright white LEDs with an input power of 2W or more. In this environment, if you use a three-color primary color high-efficiency energy-saving lamp, the value is only 1/10 of the LED, and the luminous flux is the original 4 times as much as 2~10w low-voltage DC three-color primary color high-efficiency energy-saving lamps have been successfully developed, with a life span of 6000 hours. According to the above analysis, we believe that low-power solar lawn lights below 1w that have the effect of adjusting light and shade and frequent switching, usually use LEDs as light sources. However, when using ultra-bright white LEDs, we must pay attention to the question of the luminous flux retention rate, otherwise it will easily lead to confusion. It is more reasonable to use three-color primary color high-efficiency energy-saving lamps to withstand solar lawn lights with high power. What is important here is that the above conclusion is only an analysis at the time. When the level of LED technology improves and the value declines, the above conclusion needs to be reformed.